摘要
目的:研究傣族药灯台叶中的非碱性成分。方法:乙醇提取物经酸碱处理得非碱性成分,正、反相色谱法和Sephadex LH-20凝胶柱色谱法分离,NMR,MS等波谱技术鉴定化合物的结构。结果:分离得到14个非碱性化合物:环桉烯醇(1),乙酰-α-香树醇酯(2),β-香树醇-3-棕榈酸酯(3),羽扇豆-20(29)-烯-3-醇(4),羽扇豆-20(29)-烯-3-棕榈酸酯(5),β-谷甾醇(6),角鲨烯(7),α-生育酚(8),α-生育醌(9),邻苯二甲酸二(2-乙基)己酯(10),邻苯二甲酸二丁酯(11),1-羟基-3,5-二甲氧基-酮(12),7,3',4'-三甲氧基-5-羟基黄酮(13),3,5,7,4'-四羟基黄酮-3-O-β-D-葡萄糖苷(14)。结论:化合物3,5,7-13为首次从该植物中分得。
AIM: To isolate the non-alkaline constituents from the leaves of Alstonia scholaris; METHODS: All compounds were isolated by silica gel, RP-18 or Sephadex LH-20 column chromatographic method. The structures were detenmined on the basis of 1D, 2D NMR and MS experiments. RESULTS: Fourteen compounds were obtained and the structures were elucidated as: cycloeucalenol (1), α- amyrin acetate(2), β-amyrin-3-palmitate (3), 20 (29)-lupen-3-ol(4), 20(29)-lupen-3-palmitate (5), β-sitosterol (6), squalene (7), α-tocopherol (8), α-tocopherolquinone (9), bis(2-ethylhexyl) phthalate (10), dibutyl phthalate (11), 1-hydoxy-3,5-dimethoxyxan- thone (12),7, 3', 4'-trimethoxyl-5-hydoxyltlavone (13), 3, 5, 7, 4'-tetrahydoxyl-flavone-3-O-β-D-glucoside (14). CONCLUSION: Compounds 3, 5, 7 - 13 have been obtained for the first time from this species.
出处
《中国天然药物》
SCIE
CAS
CSCD
2007年第4期259-262,共4页
基金
云南省自然科学基金重点项目2004C0009Z~~
关键词
灯台叶
化学成分
Alstonia scholaris
Chemical consitituents